/*
 * Copyright (c) 2006, 2021, webrx.cn All rights reserved.
 *
 */
package cn.webrx;

/**
 * <p>Project: javaseapp - User
 * <p>Powered by webrx On 2021-07-27 08:24:23
 * <p>Created by IntelliJ IDEA
 *
 * @author webrx [webrx@126.com]
 * @version 1.0
 * @since 16
 */
public class User {
    private int id = 3;
    private String name;
    //声明变量，必须赋值
    private final int AGE = 18;
    public void show() {
        id = 100;
        System.out.println(AGE);

    }

    public static void main(String[] args) {
        System.out.println(Math.PI);
    }
}
